A340416 - cp's OEIS frontend

A340416 Number of sets of nonempty words with a total of n letters over nonary alphabet such that within each word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

n	a(n)
0	1
1	1
2	3
3	13
4	60
5	326
6	2065
7	14508
8	116845
9	1039459
10	6710565
11	48872487
12	350817295
13	2619846205
14	20019859960
15	158415989711
16	1300359929707
17	10644485545679
18	91963547963925
19	715052566412773
20	5842504427274965
21	47435773495721103
22	390005026265914606
23	3225674439739003413

[1, 1, 3, 13, 60, 326, 2065, 14508, 116845, 1039459, 6710565, 48872487, 350817295, 2619846205, 20019859960, 158415989711, 1300359929707, 10644485545679, 91963547963925, 715052566412773, 5842504427274965, 47435773495721103, 390005026265914606, 3225674439739003413]

cp's OEIS Frontend

A340416 Number of sets of nonempty words with a total of n letters over nonary alphabet such that within each word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

Table of values

List of values